采空区对引畛济涧工程引水隧洞的影响及对策  

Influences and Countermeasures of Goafs on Diversion Tunnel of Zhenhe River-to-Jianhe River Water Diversion Project

作　　者：岳永峰[1] 罗延婷[1] 闫思泉[1] 刘振红[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《华北水利水电大学学报（自然科学版）》2014年第5期44-47,共4页Journal of North China University of Water Resources and Electric Power：Natural Science Edition

基　　金：新安县引畛济涧工程勘察设计项目(2012-SL052-01/12)

摘　　要：引畛济涧工程跨越煤矿老采空区、现采空区和未来采空区,地质条件复杂,采空区将对引水隧洞产生不利影响,施工难度较大.为此,从采空区所在地层、分布范围及与引水隧洞的空间关系入手,参考国内类似矿区地表移动参数实测值,依据《采空区工程地质勘察设计实用手册》及《建筑物、水体、铁路及主要井巷煤柱留设与压煤开采规程》,预测各采空区在引水隧洞高程附近可能引起的岩层移动及变形,分析老采空区、现采空区及未来采空区对引水隧洞的影响,提出隧洞分段、加大隧洞断面竖向尺寸、预留煤柱等对策,并对预留煤柱的宽度进行了计算.Zhenhe River-to-Jianhe River Water Diversion Project is constructed across the old, current and future coal mine goafs, the geological conditions are complex, and goals will be disadvantages to the diversion tunnel. So the construction is difficult. Therefore, by studying the stratum goals located, distribution of goals and their spatial relationships with the diversion tunnel, and refering to the surface movement parameters measured values of the similar mining area at home, the strata movement and deformation caused by goals in the vicinity of the diversion tunnel elevation were forecasted according to the Practical Manual of Goal Engineering Geological Survey and Design and the Standards of Coal Pillar Reservation and the Occupied Coal Exploitation about the Building/Water/Railway/Main Well Lane. The influences of these goafs on the diversion tunnel were also analyzed, on the basis of this, countermeasures were proposed, such as segmenting the tunnel, increasing the vertical size of the tunnel section, reserving coal pillar and etc.. Furthermore, the width of coal pillar was calculated.

关 键 词：引畛济涧工程 煤矿 采空区 引水隧洞 

分 类 号：TV554[水利工程—水利水电工程] TV672.1